Electromagnetic mechanism



April 7, 1942. J. w. ALLEN ELECTROMAGNETIG MECHANISM Filed Jan. 22, 1941 +4 Josep/r, WAUW.

Patented Apr. 7, 1.942Y

UNITED s'm'riazs APATENT 0F FICE i 2,278,967 ELECTROMAGNET'IC MEcHANIsM Joseph W.

Allen, East Orange, Bendix Aviation Corporation,

N. J., assignor to South Bend, Ind.,

a corporation of Delaware I Application January 22, 1941, Serial No,

2 Claims.` (Cl, F75- 341) Thisinvention relates to electro-magnetic mechanism, and more particularly to electro-magnetic mechanism of the solenoid type, so-called, in which the magnetic circuit gap located withina'current receiving winding, or coil.

In the accompanying drawing the invention is features of the present invention. Itis an object of the present invention to provide a solenoid switch which is positive in action, but which operates with small current consumption.

It is another object ofthe invention toA prov'ide such a. device which embodies a releaseA spring amply strong to insure under all circumstances.

Another object'is to provide a device of the above character which is designed to have a highly efficient magnetic circuit, lcausing iirm effective contact Without undue current consumption.-

removed for inspection or replacement.

Other objects and advantages will be apparent from the following description taken in connection with the disclosure in the accompanying drawing.

In the-drawing, Fig. 1 isa longitudinal sectional view of a device embodying the invention;

'Fig. 2 is an end view Fig. 3 is a view in perspective of a. sub-assem- Fig. 4 is a sectional View along the line 4 4 of Fis. 2.

a positive, quick break includes a closeable viewed in of magnetic material sure plate'jinto shell l0 concentrically therewith,

and constitutes a fixed magnetic pole piece for in which said contact plate tact plate 28 is located intermediate terminal headsjiS and 20 and .closure platell, and is adapted to contact evenly 20, to connect electrically Il and I8 when the rod 21 A Fig. 1. c Connecting member 21 carries on the end thereof which extends into shell I0 a plunger having a slightly smaller 

